CN1212349C - Flame-retarding non-halogen silicon core pipe as special material and its preparing process - Google Patents
Flame-retarding non-halogen silicon core pipe as special material and its preparing process Download PDFInfo
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- CN1212349C CN1212349C CN 02112744 CN02112744A CN1212349C CN 1212349 C CN1212349 C CN 1212349C CN 02112744 CN02112744 CN 02112744 CN 02112744 A CN02112744 A CN 02112744A CN 1212349 C CN1212349 C CN 1212349C
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- flame
- retarding
- halogen
- screw extruder
- special material
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention relates to a flame-retarding non-halogen silicon core pipe special material and a preparing process thereof. The present invention provides a flame-retarding material applied to an electric wire, a cable or an optical cable threading pipe, and a preparing process thereof. The special material is composed of the following components by weight: 51 to 73% of HCPE resin, 25 to 45% of compound flame-retarding non-halogen agent, 1 to 5% of processing auxiliary agent and 0.1 to 2% of stabilizing agent. Firstly, the flame-retarding non-halogen agent, the HCPE resin, the processing auxiliary agent and the stabilizing agent are thoroughly and uniformly mixed. Secondly, the materials are added into a double-screw extruder and are granulated after being extruded from the double-screw extruder. The processing temperature of the double-screw extruder is from 160 DEG C to 230 DEG C. When the uniformly mixed raw materials are added into the double-screw extruder, and the flame-retarding agent and the HDPE resin have good compatibility by a side position material feeding method. The material has good flame-retarding performance and can not generate a large amount of toxic gas during incineration.
Description
One, technical field:
The present invention is material of a kind of penetration pipe that is applied to electric wire or optical cable and preparation method thereof, especially a kind of proprietary material of flame retardant type.
Two, background technology:
Be divided into for electric wire penetration pipe material fire-retardant two types of the fire-retardant and halogen-free flameproofs of halogen are arranged.There is fire-retardant its addition of halogen little, the flame retardant properties height, but its burning the time can volatilize a large amount of toxic gases, causes " secondary disaster ", and the matrix of this material is the HDPE resin, and fire retardant is an expansion type flame retardant.And the matrix of bittern-free flame-proof material is the HDPE resin, and fire retardant is a magnesium hydroxide, aluminium hydroxide, phosphorus flame retardant, nitrogen fire retardant etc.When using this fire retardant, addition is bigger, and not only this has improved the cost of product, and has influenced the mechanical property of material.
Three, summary of the invention:
(1) goal of the invention
The purpose of this invention is to provide a kind of flame-retarding characteristic that has, when burning, can not produce flame-retarding non-halogen silicon core pipe as special material of toxic gas and preparation method thereof.
(2) technical scheme
The present invention is a kind of flame-retarding non-halogen silicon core pipe as special material, and the component of this PP Pipe Compound is calculated by weight to: HDPE resin 51～73%, composite halogen-free fire retardant 25～45%, processing aid 1～5%, stablizer 0.1～2%; Earlier with halogen-free flame retardants, HDPE resin, processing aid, that stablizer carries out thorough mixing is even, adds twin screw extruder then, extrudes the back granulation by twin screw extruder; The processing temperature of twin screw extruder is at 160 ℃～230 ℃; When the raw material that mixes was added twin screw extruder, fire retardant adopted the reinforced method in side position, makes fire retardant and HDPE resin that better consistency be arranged.
(3) technique effect
Adopt bittern-free flame-proof material of the present invention, can reduce material smog and toxic gas when burning greatly, have stronger self-extinguishing again simultaneously, and the drip phenomenon can prevent to burn the time.Simultaneously with the contrast of inorganic hydrated metal oxide in, can reach higher oxygen index with lower loading level, improved the mechanical property of material, when burning, the surface can produce the expanding layer secluding air, therefore effective good self-extinguishing.
Compare with present existing magnesium hydroxide, aluminium hydroxide fire retardant, the addition of fire retardant obviously reduces, and therefore to the also corresponding minimizing of the influence of the mechanical property of materials, not only cost reduces, and has more practicality.
Four, embodiment
Example 1: the proportioning of material is: (by weight percentage).
HDPE resin (model is TR-480) 55%
(model is ANT-6/mg (OH) to the composite halogen-free fire retardant
2) 40%
Processing aid (model is EVA) 4%
Stablizer (model is KH-550) 1%
The method of preparation is: earlier with halogen-free flame retardants, HDPE resin, processing aid, that stablizer carries out thorough mixing is even, adds twin screw extruder then, extrudes the back granulation by twin screw extruder; The processing temperature of twin screw extruder is at 160 ℃～230 ℃; When the raw material that mixes was added twin screw extruder, fire retardant adopted the reinforced method in side position, makes fire retardant and HDPE resin that better consistency be arranged.
Example 2: the proportioning of material is: (by weight percentage)
HDPE resin (model is TR-48) 63%
(model is ANT-6/mg (OH) in composite halogen-free resistance alkene combustion agent
2) 25%
Processing aid (model is EVA) 1%
Stablizer (model is KH-550) 1%
Working method is with example 1.
Claims (4)
1, a kind of flame-retarding non-halogen silicon core pipe as special material is characterized in that the component of this PP Pipe Compound is calculated by weight to: HDPE resin 51～73%, composite halogen-free fire retardant 25～45%, processing aid 1～5%, stablizer 0.1～2%.
2, a kind of preparation method of flame-retarding non-halogen silicon core pipe as special material is characterized in that earlier halogen-free flame retardants, HDPE resin, processing aid, that stablizer carries out thorough mixing is even, adds twin screw extruder then, extrudes the back granulation by twin screw extruder.
3, flame-retarding non-halogen silicon core pipe as special material according to claim 2 and preparation method thereof, the processing temperature that it is characterized in that twin screw extruder is at 160 ℃～230 ℃.
4, flame-retarding non-halogen silicon core pipe as special material according to claim 2 and preparation method thereof, when it is characterized in that the raw material that will mix adds twin screw extruder, fire retardant adopts the reinforced method in side position, makes fire retardant and HDPE resin that better consistency be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112744 CN1212349C (en) | 2002-03-12 | 2002-03-12 | Flame-retarding non-halogen silicon core pipe as special material and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112744 CN1212349C (en) | 2002-03-12 | 2002-03-12 | Flame-retarding non-halogen silicon core pipe as special material and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1369518A CN1369518A (en) | 2002-09-18 |
| CN1212349C true CN1212349C (en) | 2005-07-27 |
Family
ID=4742219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02112744 Expired - Fee Related CN1212349C (en) | 2002-03-12 | 2002-03-12 | Flame-retarding non-halogen silicon core pipe as special material and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212349C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649081B (en) * | 2008-08-14 | 2011-05-04 | 中国石化扬子石油化工有限公司 | Method for manufacturing halogen-free fire-retardant polyethylene material |
| CN106084429B (en) * | 2016-08-18 | 2018-10-09 | 贵阳甬鑫塑管制造有限公司 | A kind of underground communication plastics used for pipe pipe and preparation method thereof |
| CN109061818B (en) * | 2018-08-23 | 2023-11-07 | 镇江荣诚管业有限公司 | Manufacturing method of silicon core tube |
| CN110204810A (en) * | 2019-05-15 | 2019-09-06 | 荆州亮诚科技股份有限公司 | A kind of production method of environmental-protection flame-retardant silicone pipes |
| CN117067705B (en) * | 2023-10-16 | 2024-01-02 | 江苏诺贝尔塑业股份有限公司 | Flame-retardant silicon core tube and preparation method thereof |
-
2002
- 2002-03-12 CN CN 02112744 patent/CN1212349C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1369518A (en) | 2002-09-18 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SINOPEC YANGZI PETROCHEMICAL CO. Free format text: FORMER NAME OR ADDRESS: YANGZI PETROCHEMICAL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 777, Dachang District, Jiangsu, Xinhua Road, Nanjing Patentee after: Sinopec Yangzi Petrochemical Company Ltd. Address before: No. 777, Dachang District, Jiangsu, Xinhua Road, Nanjing Patentee before: Yangtze Petrochemical Industry Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20160312 |
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| CF01 | Termination of patent right due to non-payment of annual fee |